Montres Rado S.a.

Other

Michael Bach

Christophe Guerry

S&eacute;bastien Bolzt

Olivier Bucher

Denis L&uuml;scher

Christian Verdon

Cl&eacute;ment Meyrat

Bertrand Carrard

Armin Z&uuml;rcher

Eloi Vuillaume

Fernand Vuillaume

S&euml;bastien Bolzt

Philippe Savy

Armin G&uuml;nster

The bracelet () is formed of several juxtaposed links () made of rigid material and a flexible core () onto which the links are threaded. The flexible core () is formed over a part of its length of flexible elements () removably assembled one after the other. Each flexible element comprises on two opposite sides a first assembling portion () and a second assembling portion () complementary to the first assembling portion. The elements can be assembled one after the other by fitting the first and second assembling portions together to form a flexible strip. The links () are positioned on the flexible core to hold the flexible elements in their assembled position.

Bracelet with links made of rigid material on a flexible core

The invention concerns a structural component made of hard material for a wristwatch, characterized in that it includes a hole fitted with an inner threading which is integral with said component, said threading being directly obtained by injection and thus without removing any material of said component for example by machining.

Structural component made of hard material for a wristwatch

A structural component made of hard material for a wristwatch, characterised in that it includes a hole fitted with an inner threading which is integral with said component, said threading being directly obtained by injection and thus without removing any material of said component for example by machining.

The wristband with links ( ) includes a plurality of bars ( ) acting as means for linking and articulating the links with each other and means for holding said bars in said links. Each bar is held axially by at least one of its ends ( ) on to a link ( ) by means of a collared sleeve ( ) designed and arranged to abut against holding means ( ) carried both by the bar and the link.

Wristband with articulated links

A structural component made of hard material for a wristwatch, characterized in that it includes a hole fitted with an inner threading which is integral with said component, said threading being directly obtained by injection and thus without removing any material of said component for example by machining.

A wristband ( ) with articulated links preferably made of injected ceramics includes per assembly pitch two lateral links ( ) each including a threaded hole ( ) and a smooth hole ( ), a central link ( ) pierced with two smooth through holes ( ), a bar ( ) threaded at least at its ends and a spring bar ( ).

Watch case ( ) closed by a crystal ( ) and a back cover ( ) delimiting with a casing ring ( ), a space ( ) for housing at least a movement ( ), including a metal center ( ) whose outer wall has a stair structure ( ) complementary to the inner structure ( ) of the cover ( ) secured to said center ( ) by means of at least two screws ( ) passing through it via holes ( ) to tighten clamps ( ) housed in radial hollows ( ) formed in a vertical wall ( ) of the cover ( ), by compressing an elastomeric gasket ( ) arranged between two horizontal surfaces ( ) of the stair structures, and whose thickness is sufficient to arrange clearances ( ) at least between opposite surfaces respectively of the back cover ( ) and the base ( ) of the cover ( ), and the vertical wall ( ) of the center ( ) and the wall ( ) of the cover ( ) joining the base ( ).

Device for assembling a cover made of hard material on the middle part of a watch

The bracelet is formed of decorative elements ( ) mounted on the links ( ) of a chain ( ). Each decorative element ( ) includes over a portion of its length a central rib ( ) and two lateral edges ( ) connecting the cap ( ) and feet ( ) made as an overthickness on the bottom ( ). Each link includes on either side of a slot ( ) two coupling elements ( ) connected by a bridge ( ) provided with a pin hole ( ), each having a lateral arm ( ) provided with a pin hole ( ) and forming with the bridge ( ) a complementary recess ( ) of an extension ( ) provided with a pin hole ( ) at the other end. The bending of one link with respect to the following one is limited by blocking means provided either at the opposite pin holes or at recesses and extensions.

Articulated bracelet with limited bending

An element made of elastomeric material (,) is made by overmoulding between the middle part (,) of a watch case and a support ring, in particular a casing ring (,) intended to support the watch movement. This allows the constraints of the inner form and inner machining of the middle part to be reduced, while allowing accurate positioning of the internal elements of the watch with respect to the middle part. The elastomeric element (,) can also assure sealing with the control stem and/or the crystal of the watch.

Method for making a watch case

The invention concerns a decorative element which includes a substrate coated at least partially with a protective decorative film made of a hard material, characterised in that the material of said film has a microcrystalline structure and an external surface having a regular cauliflower type topography.

Decorative element, in particular an element forming a part of a

A transparent and scratchproof watch crystal, characterized in that it is made of polycrystalline diamond. The invention also concerns a watch case fitted with such a watch crystal.

Transparent and scratchproof watch crystal and watch case fitted with

The invention concerns a transparent scratchproof watch case closure element, characterized in that it is realized by sintering a pressed part or a injected part having a general shape similar to that of said closure element, said part being essentially formed of a powder or a mixture of powders of ceramic material and in that said closure element is transparent in the visible spectrum.

Growing community of inventors

Biel, Switzerland

Michael Bach